Portable electric light.



W. BAUER.

PORTABLE ELECTRIC LIGHT.

APPLICATION FILED JUNE 2, 1915.

Patented Sept. 25, 1917.

2 SHEETS-SHEET l.

IIVVEIVTZR/I/ A TTOHNE Y W. BAUER.

PORTABLE ELECTRH) LIGHT. APPLICATION FILED lupus 2.191s.

1,241,,G7'7. Patented Sept. 1911 2 SHEETS-SHEET 2.

ATTORNEY ends carry outwardly-projecting catch studs 1.1 shown firmly secured to the spring strips 9 by having their reduced inner ends passin r through such strips and upset or riveted at the inside.

penings 7 of the cover rim 3, when the openings 7 are brought into alinemcnt with the openings 6 and catch studs 11, as will presently more clearly appear At a middle point the spring strips 9 carry finger studs 12, of greater length and diameter than the catch studs 11 and shown as having inner reduced ends riveted to the spring strips 9, and these linger studs 12 project outward through the finger-stud openings in the cylindrical casing part 1, and these finger studs or actuating studs 12 normally project some distance beyond the outer cylindrical surface of the casing part 1 as most clearly appears in Figs. 2, 3 and 4: of the drawings, particularly in Fig. 4c. To remove the cover part of the casing", it is only necessary to press upon the rounded outer ends of the finger studs 12 and lift oil the cover art of the casing. To replace the cover of t e casing, it may be simply-pushed over the upper end of the casing part 1 in any rotative or angular position in which it "happens to be and should be pushed on as far as it Wlll go or until the lower edge of the cover rim 0 stopped by the abutment bead 5, then by simply rotating the cover part on the casing part 1, the studreceiving openings 7 will be brought into alinen'ient with the catch studs 11, whereby the spring strips 9 will automatically snap the catch studs 11 into place through the stud-receivii'ig openings 7 in the cover rim 3 to lock securely and positively the cover part of the casing in place upon the casing part 1. Both of the linger studs 12 may be actuated 0r pressed inward at the same time very conveniently with one hand, by placing the thumb ever one of the studs 12 and a finger, for example the forefinger, over the other of the finger studs 12 and pressing the two studs 12 toward each other, either for releasing the catch studs 11 from the stud-receiving openings 7 in the cover rim 3 to remove the cover or in replacing the cover, to permit the lo edge of the rim to pass the catch studs 11, as will b readily understooi'l, the spring strips 9, when thus actuated, acting as levers of the third class in withdrawing; the catch studs 11 from engagement with the cover rim 3.

Abell-shaped metal support 13 is secured to the outside of the cylindrical wall of the casing part 1 in electrically conductive re lation therewith, by means of lugs 14]: thereon, shown as four in number, which meter? borough the shell or casing part 1 and are turned over outwardly or clenched at the inside thereof, as shown in the drawings, and the supporting bell 13 is further sccurcd the casing part 1. by means oi? solder within the reduced ncck ol': the bell at the -::a1tsi e oi the casing part 1, as appears in 1 and of the (flrawings. A usual lens c: tried by a usual sheet metal band or 15 is ring 16 which is screw-threaded over the outer end of the supporting; cell 13, and the lens 16 clamps in place a concave metallic reflector 17 upon the outer end of the supporting bell and in electrically conductive relation therewith. A metallic screwthreaded lamp socket 18 is supported centrally by the reflector 17 in electrically conductive relation therewith and projects inwardly therefrom in substantial alinementwith an opening 1.) in the adjacent cylindrically curved wall of the casing part 1. An ordinary miniature incandescent lamp having a bulb 20 has its scrcw-threadcd base terminal 21 screwed into the lamp socket 18 and has its central contact terminal exposed and projecting slightly within the cylindrical casing part 1, as appears in the drawings, particularly in Figs. 1' and 5, it being noted that the other terminal or base 21 of the lamp is in electrically conductive relation with the cylindrical casing, part 1 through the lamp socket 18 and its supporting bell 13.

The using contains a common form of battery having a usual paper outer insulating coveringfill. The battery is shown as of generally triangular shape in its transverse dimei'isions and as having flat ends. At its opposite ends the battery has similar spring! contact terminals 21 which project at an'inclination inwardly above the llat ends of the battery about half way across the battery ends as shown in the drawings.

The circuit-completing means between the lower battery torn'iii'ial 2i and the central. terminal of the lamp include a metallic contact strip of generally L-shapc, the lower free end of which extends horizontally inward across the casing bottom 2 at the inside oi an intcrposcd insulating disk or insulating plate 213 into position to come in contact with or to be engaged by the lower terminal 2t of the battery. The interposed insulating plate 26 may be of paper or other suitable insulating material, and it electrically insulates the lower lmttery terminal 24: and the lower end of the contact strip from the metallic casing bottom 2. The generally L-sliaped metallic contact strip 25 in its upright part is su 'iportcd upon the cylindrical casing part 1 by m mus of a sheet metal supporting plate 27 over the upper edge of which the contact strip 25 is shown as bent in inverted U-t'orm, and the contact strip 25 has a downwardly extending upper is secured to the '32 portion f the 7 0r shoulaers which is i fixing :ni-{i controlling terminal m2 iis upper terminal drawing." i 1 musing pm'is back to A Si? hip M (if ush as i'uicmi around the mud] both dowminrd mm Ward aver the iowc mem- Mand 1s niifierposcd spring and i -ricziily ins ifbs su t-n01" tact sii'lp strip 55:; supporsing uppoiuing 1m i c is 511]) 1g part ilitii cm1- and 011v My, 35 in rivets 30 which :iss mg ssi'o through has." f a m ing strip 3m; holes H] the su min the i1 insuiii the is Sillliizll'i insu 0nd pink i by 1110:1125 u? :1 insiii: i'i xg disk 3. these 1 3' being of suitnbw tion v. The si compleii ing t cal casing 1322i (favored from the e shown as dos-9d 0 viiiiig and and at ifs inner wuim wi'iniieiiil 11113011 flag inner sn 1 L ,r 14 1101 at LhQSB as by soldering,

The Sllil PUl'iil" along vertical iiiies so as is 01' shoulders 31 which form, the casing aijacen't to bin? in which the upright par-U of the mpleting'conzict strip is racsiw tei'posed insulating strip 52.,

losely in this 0 Mel s 31, is nai'imi'eig as app This consti-iiciion, m

I iOtilHiHQ' that H10 M1101 vinsviy U1 snugly cyiilnii'ivui Imus minim] fl-mil 0: 1'0- siiiiiing oi' siiding :iw c-ziwipinto 1 bring {Lu central sunning 0W 3% -1 Wliil iiiiu top cover mm side (if the en- 'fiding of the i riiil'iilig $2 1; f n; opening 35 therein. bOi/iJGIH edge as We as 01 th s top My "15' 33 is shown as the in'suluaing plate 2?, mm in 25h I v 01 the factihat the securing riveis snugly or Withoutpiay throw; strip 25 and similar. j} insuiiting ship 99, p01 suiating'strip 29 against in any direcion, and i) 4 tact strip 2F and its lie-Hing shifting ositions s0 as in short circuitv by cantact of with the supportii'ig plate mid to provide 2 wed 0nd part 40. bio cii'i'uit COI'lilOliQl' i-oii ei'nl'ii'e with the 1 1-0 of the con Twins of the housing ('31 pirvgeuis in the ouiside of the man mil zuiuziiion. This mow mum-Mimis imigitm'iinally movjevis from 01 msiic sidas of the ,1" 11122111116 umion iii Either openings. in 51125 supper; Dial: .iowznicni' opening or 'clos- WhlCh the rivets pass, and simiiariy vanish, This; 101; "tudinaily mov- I I v f'fl upright of the smmsciz i COHUOHSY comprises a tapered are prevented from cammgmw -i,.: konmci; $1 anti a. tapered t-iibular insulating mei'nbcr 42, shown as having their larger abutting ends of th same c diameter. The tubular contact piece ll and the tubular insulating member are car ried by joined metal stems 13 and idof which the stem L3 app airing at the ieitt in Figs. 1, 5, 8 and t) of the di ings, has a reduced portion forming a shoulder and passing throuqh the tapered tubular insulating member d2 and lilmwise through the tapered tubular cont-a ct piece ll. and serewthreaded. into the inner end oi? the other metal stem 4st, whereby opposed shoulders are provided between all 'ch the tapered tubular contact piece t1 and the tapered tubular insulating member -12 are clamped to gether on the reduced portion of the metal stem all the tapered. tubular msulating member being shown as of F aer length than the tapered tubiidar contai piece 4 Apertures are provided in opposite sides of the cylindrical wall of the housing 38 and the metal stems i8 and it of the longitudinally movable circuit controller passire .irh these openings and are slidable thei being noted that these metal. stems 5 and lit. are in electrically conductive connection with the metal housing and, therefore, are in electrically conductive relation with the lamp base 21 through the intermediate metallic casing parts. The n'rovable contact piece it and the movable insulating member 42 are in cooperative relation with the stationarily mounted contact spring 325 within the cylindrical housing The resiliency of the contact spring l presses its rounded contact-making free end ell) against and into frictional engagement with the movable contact piece or the movable insulating member 4r2 according to the position of the circuit controller,- the stems L3 and it of which are free to slide longitudinally through the apertures in the cylindrical housing 38. At their outer ends the actuating stems L3 and 4d are shown provided with heads and by pressirvg upon the one or the other of these heads, either the con tact piece 41 or the insulating member may be brought into engagement with the rounded free end 40 of the contact spring 33, it being noted that the contact pring extends in the-same direction as the stems 43 and 44. The heads on the outer ends of the actuating stems 4-3 and it orin stops at the outside of the cylindrical housing 38 as appears in the drawings, and the sligl'itly projecting smaller ends of the tapered contact piece 41 and of the tapered insulating member 42 are shown as in position to form also other stops at the inside of the Wall of the housing 38.

The frictional engagement of the rounded end 40 of the contact spring 33 together with the tapered form of the tubular contact piece 41. and of the tubular insulating memclosed condition of: the r ted in F1;

as illua uld be note-til t hat the iii: in a good ent ct t. metal contact spr euit-complc v i. l

stems 4:3 and it with the cylindric l wail. of 'the housing 38. The slidahle c. uit con-- trollcr most easily and iiently shifted in its longg'itulinal sli circuitcontrolling inove rents. and similarly in. either direction of its movement, by placing the thumb or a th or one hand over the top edge of the rim 5 ol? cover partof the casing toward which the slidable circuit controller to be pr ed ta niovcd by either the thumb or a tin the same hand...

The poriahle electric lig t of tion. is shown as provided with a big bail handle by u'l it may be carried on the cnn the bail '11,): shown as pivotaii :ured to the top the casing cover by means 0 lips it held in place by rivets, as appears in Fig.

It obvious that 'ar i'ous moditimitions may be made in. the construction shown in the drawings and, above particularly described within the principle and scope of my invention.

I? claim It. A. portable electric light corruirising a cyliiulrical. electrically conductive battcrycontaining casing, an electrically conductive supporting plate secured at opposite edges to the inside of the cylindrical casing wall and forming a bridge extending across in spaced relation to the cylindrically curved inner surface of the casing, means "for supporting an incandescent electric lamp with the base terminal in electrically conductive relation to the casing} and with its central terminal exposed at the inside ot the cyliir drical casing wall in the space provided by the supporting plate, an electrically conducmy inventive circuit-connpleting strip supported by and insulated from the supporting plate in contact with the exposed central terminal of the lamp and extending into a position to be engaged by one of the battery contact ter rninals, and a circuit coi'itroller on the (asin the the battery.

2. A portable electric light comprising a. cylindrical electrically conductive battery-containing casing closed at the bottom end and adapted to contain a battery having spring contact terminals projecting substantially to the center of the ends of the casing, an insulating disk at the inside of the bottom oi": the casing, means including an electrically couductire lamp socket for sllp 'ior iu gl an incandescent electric lamp with base termifor electrically coinliu:ti .'ely connectiiiig. casing to the other contact terminal of nil in electrically conductive relation to casing and with its central tc ninal exposed at the inside of the cylindrical casing "wall an electrically conductive supporting plate secured at opposite edges to the 'nside o cylindrical casing wall extend] in spaced relation to the T minal of the lamp, an ele circuit-completing spring the top of the suppe free resilient contac downward into contact minal of the lamp and er i ing strip at the other plate extending down. at an angle across Y ing disk into pot lower contact sp tion interposedhe i ing strip and its supp securing the circuit-cl supporting plate in insulate to, a removable electrically c for the top of the casing, and troller on the cover for electricall tively connecting the cover to the up; tact spring of tie batt 3. A portable 2 posite edges to the i1 and extending transve I relation to an. inter-media ing wall, an insuiatii" opposite edges oi so that such insulai' longitudinally, shoal: the supporting plate to p ing of the insulati conductive circuit-c I ed by the supporting pla/ l therefrom by the insuh tening devices passing completing strip and t a strip and through the suppc plate for securing the circuit-coinplctrg strip on the supporting plate, the supportin plate having therein enlarged openings to he instening devices so that the fasten devices are out of contact with the suppo 11;: plate.

il. portable electric light comprising a battery-containing casing having 2 n electrically conductive casing part including a end wall of the casing, an eicz-trically conductive tubular housing inouutml. on and projecting from the outside of i l such housing being closed at its outer end and the casing end wall forming a closu for the bottom of the housin conta plate at the inside of the casin end. wall inward from the housing in position to be engaged by a battery terminal, a contact member on the end wall within the housing, insulationinterposed between the contact plate and the inner surface of the end Wall of the casing, insulation interposed between the contact member and the outer surface of the end wall of the casing, an electrically condur fastening device out. of electrical connection with. th lcasing and holding the conta t member and the contact plate on the or the casing, and a movable cir- -..a controller cooperative with the contact aber at the inside of the housing for or closing the circuit and projecting outside of the housing for manual it comprising a other insulating plate at the inside of the asuig wall a contact member on the 111511- 1g plate within the housing, a contact te inward from the insulating plate Withthe casing, an opening being provided in e casing wall between the insulating "ates a fastening device securing together id electrically connecting the contact mem- 'thin the housing to the contact plate casing and passing through the 11g the casing wall out of contact casing; wall and a movable circuit 1 cooperative with the contact within the housing to control the all; condition between thecontact memand the housing and projecting to the i of the housing for manual actuation. A portable electric light comprising a hattervcontaining casing having an electrically conductive casing part including a rail ot the casing, an electrically conductive nhular housing mounted on and projecting From the outside of said casing wall, such loosing hcin osed at its outer end and the b we of the housing, a contact member supported on and insulated from the casing wall within the housing, and a shdable circuit concasing 'all forming a closure for the-bottom (roller coiiperative with the contact member at the inside of the housing for opening or closing the ('U'Cllli} and pro1ect1ng to the out side oi the housing at opposite sides thereof WALTER BAUER. 

